Computing mechanism.



J. V. SOUDER. COMPUTING MECHANISM.

APPLICATION FILED MAY 28,1912.

1,1 145,406. Patented Oct. 20, 1914.

4 SHEETS-SHEET 1.

WITNESSES INVENTOR www Jesse V. Soc/deaf n4: NORRIS Psrcns co PNOIO-LITHO WASNINCYON a. c

J. V. SOUDER.

COMPUTING MECHANISM.

APPLICATION FILED MAY 28, 1912.

1,1 14,406. Patented 0211120, 1911 4 slums-sun's.

INVENTUR Jess: V. Souder ATTORNEYS INC MORPIS PEIERS C0 PNDYD-LITNOH wnsrnucmu. 0. c.

J. v. SOUDER.

COMPUTING MECHANISM.

APPLICATION FILED MAY 28, 1912.

1 1 l 4;,406. Patented Oct. 20, 19M

4 SKEETS-SHEET 4.

WITNESSES INVffv'TOR mimzg ATTORNEYS THE NORRIS PETERS ca. PNOIUVLITN-L. WASHINGYON. n c

I JESSE V. SOUDER, OF JERSEY CITY, NEW JERSEY. I i

COMPUTING MECHANISM.

To all whom it may cohcmia f Beit known that I," JEssE ,.V. sounniz a citizen of the United stateg and a resident of Jersey City,'iiithe,county. of Hudson and Stateof New Jeisey have inventedla. new

. and; Improved j computi g Mechanism ojf i act description. I 7

This invention relates to improvements in computing machine's'fand ,isadapted to be,

which the following, is.a;.i 1i,;,ciea ,;and x: .1

' j exceptthat part of the front mechanism has used with any desired rriechanisrn, asfor.

instance it may,'be coinbined witlifarefcord.

ing machine ,in the form' of a typewriter associated 'with .;tlie,' fmechanism thereof, so

r as to be opeiatedby theiusual numberkey s provided on that kind 6r v inechanism., 3,

The 'obiet of the invention is to provide 5 a structure which the operating parts are. reduced to a; hand, the amount of r iib'r Po' i r eq ii iaglit ei ret g t dev ce'isalsorediiced to;a minimum.

A further lobject of invention to,

produce a; ,'cornputii1g device;.which' may be p ated bot d resti li e y p ated'so'asto add and operated so as to s'ub 1 tract. f 1. ;.L.

I In carrying 'oiit itheseiobject s a mechanism is providediwhichiii'iay be. secured to a typewrite' r'j or other machine ;in.' any de-Qi sired manner and .whichnis constructed so as t 'Occu Y-L'a minimum space. All the'.op'- crating mechanism is arrangedin a housing except the restoring and resetting members and part of the digit wheel. Informing the mechanism the s ame is designed to be operated by'a 'master wheel, the master wheel operatin through the various digit wheels, which in turn act at times upon mechanism provided which will cause the next succeeding digit wheels to be operated and to become locked when operated until released. Each of the digit wheels is associated with a i-cstoringmechanism, a transfer mechanism, and a trip mechanism so that each succeeding digit wheel and associated mechanism is merely a duplication of the next digit wheel and associated mechanism, but a single restoring mechanism is provided designed to restore all of the digit wheels at anytime so that a new addition or computation may made.

A practical e'mbodiment...of the invention is representedin the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Specification of LettersPatent. Application 'fiied' ia 2s, s a Serial No. roams. j

Patented Oct. 20, 1914.

1- 1 mg... l is via-"a h restoring mecha nism and associatedparts-together With I I" fpart of the casing; Fig.2 .is a view similar to Fig. 1, except thatthemechanism is shown n u moved .to another position; Fig. 3 isa side;

elevation ,of the device with the side plate, removed Fig. 4 isa viewsimilar to Fig,;

been removed for illustrating theaction of.

the trips and transfer levers; Fig. 5 is a section through Fi g. =3 on the line 5.-5; Fig. (5.

isa section through Fig.5 on the line 66 Fig. 7 is a section through Fig. 5 on the line,

7 7; Fig. 8 is a side elevation ofone of the trip levers; Fig. 9 is a sideelevationof one,

of the drivers and transfer levers associated is'an. edge-view of "one of the centering pawls Fig. 15fis a transverse sectionalview through the rocking comb shown inFig. 12 andtheshaft shown 13in assembled position; Fig. 16 is .a "iew similar to Fig. vl5 except that the same shows a slightly modified form of the invention; and Fig. 17

an edgeview of part Qf theresetting more. 'nlSiil together with a segmental rack forming part of the restoring mechanism. Fig.

18 is a fragmentary view showing. a driver and trip lever together with associated parts, the structure bein shown in its inoperative or neutral position; Fig. 19 is a view similar to Fig. 18 except that the parts have been moved to a tripped position, such position being assumed when the device is adding; Fig. 20 is a view similar to Fig. 18 except that the parts have been tripped to the position occupied when subtracting, the various parts being shown in dotted lines in the adding position.

Referring to the accompanying drawings by numerals, 1 indicates a housing provided preferably divided centrally on the line 2 and thus providing a cap or covering 3 which may be held, in place in anydesired manner, as forinstance by suitable screws.

, The housing 1 is providedat one end with a projection 4 designed to co-act with a hook end 5 of a reciprocating catch 6. The catch 6 is provided with. a roughened or corrugated surface 7 for being easily engaged by.

the thumb and finger when it is desired to tees neshes eairs m Knee semantpivotally' c'onnected a lurality-(arenas Y on th "-eneenend viiiieiretrisg geniay actshs' has reached'the position shown in Fig. 2.

move the same longitudinally. The catch 6 is formed with slots 8 whicli ,acco1nmoda-te, pins 9 mounted in a pivotally mounted han dle 10. A spring 11 is connectedtwithi-thei handle 10 and with the catch 6 so as to normally jhgld the same-in the position shown in Fig. 1. The handle 10 is rigidly secured to a shaft 12 which projects a"sli'ort distance into the housing 1 and has rigidly secured thereto a segmental meii'ibei l' as a cam against a'lsho'i'ilder 14fforhfeiliin 'a plate The plate 'l 5'iis ewe-idenwith aslo't 16 he signed to accommodate a I7 which is connected to-the hjmsing -1, 'andremain's stationary' iit permits the plate 1 5 to recip re turned] apportion 18 which raring- 451 m der 1 9 de'sligned to en age 20 'extendin'gj from. the resetting fdrivers hereinafter fully portionf18extends steward yiihaemte avpivotiil pin 22fat i't's forward 'end to 'which'is' lever 10ers he'reinafteri," may f-dscrfb' d.

e nt l m s P 636 4 h a P n. 24 whicwexteiids upward-1y. through piva dtany hibiiiitedplate esthavirrg gearft eth 2'6? ed "a 'sliaft 46, which (ctcarry ithei va rious' digit whoels' 'hereinafter fully describfcd. ln-"Joide'r' to permit" p'roper rocking motion '-o' f"the pin estrous- 1;

ing into; substantially*arc shaped slot 33. When tli'devioe is positioned shown in Fig. 1, a partially'rotary'movement of the handle 1 0 and :associated parts, which ineludes Tt'he will inerely canse'the pin 24to ove from'e'nd of the's lo t to the pp a esenator of tfhep'lat SFI KoWeVeLKt ishrovem'ent hasc'arised a rearward niovem'entfof the plate 1 5 and associated pafits'whi'ch will result in g a movement of the levers 23 and also other movements ofot'he'r par'ts,.as willfbe herein-i after 'fn'lly descri be d. jA s the pin 24 con-' tinuesto move or rotate, the'same will press against one ofthe walls of the slot 32 and will gradually"move'through slot 32 until it This later movement of thepin 24 will cause a swinging movement of the plate 25 and consequently will cause aj'rota'ry movement of the pinion-Wand connected parts so as to restore the digit wheels j'to their original position with the zeros arranged fopposite the opening34 in the -casing 1. "IA reversejmovement, namely a"'re'verse'mov'ement of the variousparts when the lever or handle 10 is brought from the position shown in Fig. '2

back to the position snown in Fig. 1, will of course cause a reverse movement of the vari ous pinions and gear wheels, but will not affect the digit wheels, as hereinafter fully described, nor will it cause a permanent ;changein the position of any of the other par'tsofthe device.

The various digit wheels 35, 36, 37 and 38, are made identical in construction and are provided with reference numerals arranged -:etween' the teeth -positioned thereon, the nu mera'ls being-from z'e'roto nine. ,Qnly four o fthese wheels are shown in the drawings,

and "in' the mechanism space is provided for operating "four, although it will be evident that a greater-"or less number of-dig itwheels may be provided without departingffrom :the spirit of the invention,'fthe number of these parts beingme'rely a matter of iin pli c'ation. All of the teeth of each of the digit jwheels are out away'for forming an: open space at one side of thejrespec'tive teeth, except the master orx controllin'g teeth 40 which are formed the full width of the re l spective'digi't wheels. Each of these wheels .is formed withan annnlar recess 41 in iwhichis positioned apin 42 designed to be engaged by one o f'the collecting proj'ec't-ioiis '43 of comb The comb 44 is designed to restin a groove 45 in shaft 46 so that the collecting. projections '43 may at certain fti-mes'fit in grooves 4 7 in the shaft 46. A projection or stop 48 is provided which is adapted to fit into a friction ring 49 mount- :ed on the shafts 46. u The friction ring 49 is l p'rovided with notches 50 and 51 designed to at various times engage a pivotally mounted pawl "52 resiliently pressed against the peiriphe'ry of the friction ring 49 by a suitable spring member 53. The pawl 52 is adapted to cause a positive stop upon the rotation of the friction wheel or ring 49 and associated parts. l Vhen the handle or lever 10 is moved over to the position shown in Fig. ;2,flthe' shaft 46 is rotated as the same is keyed to the gear wheel 30; ""Themov'emen't of the ear wheel 30 is only suflicient to turn the riction ring or wheel 49 ninetenths of the distance around a circle, or from notch 50 to the notch 51. This movement will restore all of the digit wheels to their original position and a reverse movement of the handle or lever 10 from the position shown in Fig. 2 to that shown'in Rig. 1, will cause a reverse movement of the wheel 49, butwill not cause any movement of the digit wheels, the same being resiliently held against movement by pawls 54. The stop or projection 48 of the comb 44 fits into a suitable notch in the Iwheel 49 so that when the wheel ,49 is rotated by the shaft 30 and associated parts, the same will first rock the comb 44 so that the collecting projection 43 will be moved walls (34 and 65.

tion, collecting the various pins 42 and digit wheels connected therewith until a zero of all the digit wheels is brought opposite the opening 34; whereuponthe gear Wheel and associated parts have reaehed their extreme position.- I The reversemovement of the gear wheel 30, friction wheel. as), and comb 44. will not afiect the position of thedigit wheels as in case the collectingprojections strike the pins e2 .they will merely, be, depressed. ,into the grooves 4'Zandin fact-the first part of the movement of the wheel 49 ,willcauseithe depression of these members. A reverse movement of the handleor leverlO from the position shown .infTFig 2 to thegpositicmshown in Fig. .2 3 will cause a rotation of ,gear; wheel 30, shaft'Qrth e friction ring or wheel 49.being held by pawl 52'; until the collect; ing pro] ections 43 are. depressed within the groove 47, when stop l8acts-as aheygtor; turning ring 49 'back ,to-its normal posit-ion, or from notch 51 to Enotch: .50 whereupon notch 50, pawl 52, willl befagain engaged,

thus holding the collecting projections43 firmly within the grooves 47. In connection with the comb i4 and associated parts,.at-; tention is called to Fig. 16 in which a slightly modified forrnofcomb Mfris provided in which the collecting projections are formed with hook ends 55, which aredeI-i signed to. engage the respective pinsflfi and collect the sameineasimilar manner to the. way the comb 44 collects the pins. ,It will also be noted that the collectingprojections L3 extend in an ,opposite directionto the way the collecting-projections 43 extend,.as,

the same pull on the pins42, while the col lecting projections 43 press against the pins or push the same. 1

l'Vhen the master wheel 56, or any other device has operated digit wheel for in stance, (it being assumed to be at zero) until the same has been moved for a complete revolution, or ten times. Upon the tenth movement of the digit wheel the tooth will strike against .the end 57 of the trip lever 58 and move the same pivot-ally, as shown in dottedlines in Fig. 10, and in elevation in Fig. The trip lex er 58 is mounted on a stationary shaft 59 positioned in the casing 1 and cap 3. The trip lever 58 provided with a slot 60 merging into an opening 61 having oppositely disposed walls (32 and 63 and oppositely disposed At the end of lever 58 opposite slot 60 is a substantially U-shaped opening. This opening includes a rear socket G6, diverging slots .69 and 70, and slightly converging slots (37 and 68 whereby a central tongue 71.is provided, having a substantially squared end 72. \Vhcn one of the master teeth 40 engages end 57 and moves the trip lever, end 72 will move from in front of pin 81 and as this pin is being urged. forward by its driver, the same will engage one of thewalls 71 and cause the pivotal movement of the lever 58 to continue untilthe-same has reached'. the position shown dotted-lines in 10. As pin 83, isgconnected with the lever 58 the pivotal movement of lever 58 will cause pin 83 to engage and press against one of the walls of the;-slot .;6,Q. so that-- the.,transfe'r lever is .swung to one -sideas the driver moves the sameforward..tNVhenythe trip lever is reset a reverse actionfis caiised. -lVhen vthe.

driver is being moved back,--the pin til engages the outer Walls of slots 67 .and 69 or sl9ts 8;and 70 according to the direction of -move ment;.oj the lever 58. The pin Srfollows-gzhese walls until it reaches socket- 66 and-,then moves against end ffi, this last I movement taking'iplace when the resetting mec'hanisrni is releaseda g Duringthe time j that; pin; 1;is-in-S(lcket 43,6; the't-rip' levers 73- are.-, f ositively locked or -held against-pivotal 'janovement; by said pin, whereby the varons denominational-wheels= cannot move past zizero under the-action of momentum.

This is true of all {the jwheels except one denominational. wheel-which is engaged and locked against..--passing. the zero, point by lever 97 shown in,I* ig.-3. vOne side of the trip lever- 58, i s termed with ;an enlargement $73 liavingaplur'ality ofinotches 75L formed therein-for engaging a trip 'loeator 75 which is.- ;substantially a. .-pivotally.- mounted pawl acted uppnby a retractile spring 76. The {trip .locator {(51 ',is; pivotally mounted on a shaft rpin- ZZ and; is; designed to continually engage one of the notches 74 under the actiongof the, spring/1,6, which is connected to ,a ,projection 78 at the rear of one of the drivers 21. Upon the movement of the tenth cogor tOOt-liOf the digit wheel the trip lever 58 will .be tripped or moved pivotally .as above described and will remain gin that position until reset.v lhc pivotal .movemcnt -of the trip lever 58 will cause several :other. parts to operate, as various mechanism is provided which project into some of the-grooves or slots formed in the ends of the trip'lever. Oneof the functions ofrthe trip lever 58 is to release its coacting driver 21 .more clearly illustrated in Figs. 5, 9, and 10. The driver 21 is formed with a slot 80 for accommodating the shaft 17 positioned stationary in the housing 1. The driver 21 is also provided with a pin 81 which, if desired, may be pro vided with an antifriction roller and which is adapted to fit into the socket 66 at certain times but to norinally rest against the tongue 71 on the trip lever 58. The respective springs 76 not only holdthc trip locator 75 in position, but also act on the drivers for giving the same a continuous tendency to moveforward or toward the digit wheels. \Vhen the trip lever 58 has been moved in either direction, the pin 81 will move correspondingly, namely, into the passageways or slots 67 or 68, and from thence into the passageways or slots 69 or 70. Upon a longitudinal movement of the driver '21, pivotally mounted transfer'lever 82 will be moved forward and at the same time swung to one side by the action ofthe trip lever 58, as heretofore described. The transfer lever 82 is pivotally mounted at8 l to the driver 21 and is preferably formed so that the outer surface thereof will be flush with the outer surface of the driver 21'. Upon the forward and ivotal movement-of the transfer lever 82 t e same will strike against one of the teeth of the nextdenomi national wheel and cause the salme'to be moved one step forward. The driver '21- and associated parts will remain in this-position until reset whereby the digit Wheel 36 will be locked against movement in either direction as the point of the transfer lever 82- is against one tooth and the side of the transfer lever is resting against the next succeeding tooth, as clearly shown in Fig; 4.;

In order to reset the driver, trip levers, otc., an arm or cam member 85 operated by the typewriter or other machine to which the device is connected, engages' a stop or projection 86 and moves the sa'me' 'lo'ngitu dinally of the casing l and consequently fully described for moving the drivers and associated parts to the positionshown in Figs. 3 and 5. This resetting'mec hanism will reset either one or all of the driver-s and The stop or projection 86 is provided with a lug 87' associated parts simultaneously.

rigidly secured by any means to the turned up portion 18 of the plate 15 so as to rnove the plate 15 back and forth. The lug87 has mounted therein a screw 88 which carries an antifriction roller 89 against which the cam 85 presses so as to reduce the friction to a minimum. A retractile spring 90 is connected at one end 'to the lug 87 and at the opposite end to a stop 91 rigidly secured to the casing 1 in any desired'manner. In orcer to properly guide the lug 87, a rod 92 is rigidly secured thereto and as 'arranged to slidingly fit in a suitable aperture in the stop 91 so as to be able to reciprocate ba k and forth therein. The cam 85 is designed to move the lug S7 in one direction whether or not the same has been moved forwardly for resetting the same. By this construction and arrangement it will'be'observed that the drivers are reset by an actuation of the stop or projection 86 and also reset by the 'In'eimbe'r 13 which is rigidly connected'with the'h'and'le or'lewrIO. When it is designedto restore the digit wheels to '1 their original position the leve r l-0is o eratedtind the first mechanism moved thereby will be the member 13 forc'aus'ing a e.-

setting of the drivers and aftefitheresetting'of the drivers has-been assured the mechanism will be operated ,as heretofore described for restoringthe digit wheel.

1 Whenthe device is 'be ingoperated for-addiiig or subtracting, the'refs'ttiii mechaaiism' is'operatied for resetting thedr vers without affecting th'e'posit-ion of the digit wheel3"'- It will be evident 'th'at as all kof theidrivers,

'1 transfer le'versfa-nd trip levers steer identical constructiomthe description heretofore given of one'will apply equally all.' The ;forward'-'end of the-turned hpportioir 18 iea rriesfa pirf- 22 which in -turn pivo'tally loa 'rr'ies"theitransier lock lever 23,- pivoted at its upperend Orr the in 77. I'Thetransfer lock lever 23' 'is' fofine with a notch 95 desi-gn'ed'fto en age thea'es'pectivefpins 83 and positively lfo l'r-the transfer lever-S582 against pivotal nf'if =di'nal mwemem. moves the resetting mechanism hereinafter -"From Figs-*5 and it will be'obseryed that :thetrip levers al'id theti ansfer levers 'are {guided and in a'c'ertain sense held properly :in pesition by a-guide plate 96 formed with 1 slots which permits pivotal movement of the:t'rip"r-le vers' and ilie transfer levers, butt 4 i does not permit a ny l-ateral movement. -*The' I trip leversaredesignedto project a -s'hort distance beyondthe plate 96 in order to be in-the path of movement of the master teeth 40, whereby the same is moved pivotally and thus releases the ,drivers for causing the transfer levers to be moved pivotally and longitudinally for rotating the'next succeed ing wheel.

In order to provide a lock for the digit wheel 38, a pivotally mounted lock lever 97 is provided pivoted to the upper end of the shaft 59 and actuated by the end of the pin 22 operating in-the slot 98. part of the movement of the resetting mechanism the pin 94 will move the lever 97 up- On the first ward until the 'end' 99 is in line with the ends 57 of the trip levers whereby the digit wheel 38 is locked against complete rotation or over restoring.

By the mechanism described it will be noted that a single mechanism is presented which is adapted to do double work, namely to add when moved in one direction, and subtract when moved in an opposite direction. It will also be noted that the digit wheels are given a positive forward movement and a disconnected or free return, or rather the restoring mechanism therefor is 45 numeral 1 to appear' in 'the openin'g '34' on vided= by t eeenst iieti n% 111" operati given this movement. "When the handle or lever 10 is moved from the position shown in Fig. "8 to the position shown in the digit wheels are positively rotated, but when-"the handle or lever 10 moved back from the 'position 'showntin Fig."2 to"the position shown inflfi3g'I-3, the dig t wheels are-released or disconnected andthe die or lever l o' 'ltiii'cl asls'oeiated fp arts iarez permitte'dalfree retu'rn nio vementl 'lhi's is'pro cam-b" it-shbwngi Figiie'fa dth arrange; merit; of the wheel stalf-shaft sho'wn in Figl3, "wh'ereiii' the fingers-43 ofthfe eornb are permitted to rest in 3gm veen-thfe3e turn m'oveme'ntand aifpausedto rh'ove'o ward iiito the path of mtren ei' ttf the pins 42" when the wheels are bein g positively moved or restored. In regard to tli'e'isi'ii gle inechanisI'n 'loi"ng du 1e'x'"-woi= 1-it1win be obser ve'd' that di ive'r withii t trip lever and-transfer -lever is "designed to sperm? a si inr mannar;itgtrrnees "at the d nette of rotationimf "thegeigi 'sviiisesvit nit-fercept'ion of the mgver'ne he) are levers and'trip it his hich U in n one direetlon-Eaivheifthe di'gi 'hel'sfla're staffe assiimingthii nominational wireels" are ,d1sE'los1 throug'li'; the opehiiig' 3 4t g farid lit 1" (1 add- 53, the' master whel "'{a6fi or a desired meehaqis m not 'forining aiiy" penr the-pre ent;investment opemafieetaiis ing ;the -dcinor'n'ir'iation'ale vvh'eiels and 36 to move, wheel '35 moving for" three 1 points 'or a distance'of three teethj a nd' heel 36 moving for a -distance of five'teeth, thusdiselos; ing instead of"z'er6;-"theniumber '53. the numeral 53'fhas be en1tlius disclosed to view andi't"sliould"'be desired to add eight to fifty-three, thewheel 35; is rotated for a distance of eight teeth?" This will cause the wheel '35, and will cause various mechanism to befoperated for transferring motion to wheel 36 formoving -the same a distance of one tooth so that 6 will appear through'the opening 34 on the wheel 3 fi 'thus resulting in the disclosing of .the'fnumerals (51. [During the rotation of 'wheel 35 and as the same moves so that the'numeraLS'wilI leave open ing 34 and "zerowill appearf the master tooth 40 of the wheel 35 will engage its transferlever end 57 of the trip lever 58. The' mm'ement"or tripping of the lever 58 will cause the member 71' (Figf9) to move from in front of 'pin 81. This will allow one of the springs 76 connected with the driver 21 of the particular trip 78which has been operated, to be released and allow the driver to move forward The forward movement of drivenfll in this manner, will cause a forward and pivotal movement of lever 82. The lever 82 when moved in this manner willstrike against one of the teeth of wheel 36' and move the same forward the distance of 'one' tooth and lock the same in that position until the driver and trip just operated has-been "rese tji *In case it should be desired toadd one hundred or'inore to the sum already found, wheel 36 'o r ;a ny of the higher wheels may beoperated and Lvvhen the llllf metal 9 is about to lave'the opening 34 and zero -"is about to"- appear, the master wheel of the respective wheel or wheels being operated will'tr'ip ,their' respective trip levers and cause-"a properinovement of the respective drivers 21 and transfer levers 82. The tripping of the levers '58'bythe wheel 35 .eventually" causes-"the proper operation of the transfer :lever 82 as just described for the next succeeding higher wheel and thisfo peration "fof course, is repeated on all jot the wheelsof the higher denominations? After tliEF-s'ii'rndesired has been-secured, as'tor instance 'sum 6l, and it is desired to subti a't nufnherthei efrom; a reverse move ment of the denominationalfwheels may be eaused-whieh'will' cause'f'a lesser number to appear opposite bp'eningfBet andijthus result iii the' operatioti of subtraction; For inane" iffi t'islde r mem s-m s ys' t liel, 135.7 5, need M r er die. rection soi thatfth' desi'gnation zero will .ap

iiai'f'aFbpening' 3 5 finst ead of numeral 1] After the i number 60" thus secured, and it isrles'ired taf subtractfifive therefrom wheel-35 is rotated in alreverse direction a distance ofifive teethi, 'zero is 1 presented to opening?! the first'movement'of rotating the"wheel 35 for five'teethwill cause the master wheel 40 thereof to engage the same trip lever 58 engaged .while'adding but will cause the same to be tripped or moved pivotally'in an opposite direction. This will release the driver assoeiated'with'that particular trip and will cause the transfer lever 52 to move pivotally in an opposite direction to that when the adding operation was performed; whereby the wheel 36 will be ro-- tated or driven for a distance of one tooth in an opposite direction to the way it was driven forv the operation of addition. The movement of the wheel 36 for a distance of one tooth will cause the numeral 5 to appear thereon opposite opening 4, and the rotation of the wheel 35 for a distance of five teeth will cause the numeral 5 to appear opposite the opening 5 on the wheel 35 and thus disclose the number 55 which is the number or answer soughtQ From thisit will be seen that the trips and the tra nsfer levers operate indifferent directions according to the-direction of rotation of therespeetive denO national wheels.

with a slot" for ea Having thus described any invention-I claim as new and to seeure by,Letters Patent i e 1. In a computing device a series of denominational members, ,a trip lever for each of said denoininational inembers exeeptflthe and said tri nlevfe rei 'h the-sw nging 1 fi movement 'of the transfer lever as. the transfer levers, ,rn9ve, .,tl ;1 denominational memberi, I

ee-eqm e gg. eo A denommahqea reach wmglk .15 formed: witha master. tooth, e ever, fqr

c c et-said denamlnwenalmenhe x ept a highest, a rmnstelrllever'tej eadipr aid n m a nal me e 'eeg'u d te eridfgn 91f 's i'd tripdeverlsland,

for each of said iltransfen'levers. ion guiding one end of saidltripqevers' the path of movement of said, masteriteethfiyhereby they are actuated h reby andifiirigniding said transfer levers fthat .il'pon eaelijaetliation they engage the next highest denomina tio'nallmernber and move the sameon e step, means for transfer levers forwardly, and' a {iiiiIifOr conveying motion from said trip' levers to said transfer levers whereby said, transfer levers will have a. lateral as well as a forward movement.

4. In a computing mechanism, a series of denominational members, .a reciprocating driver'f'or each ofi'thedenominational mem bers except the lowest, a"'tra'nsfe r lever pivoted to eachofsaid drivers and movable therewith, a pivotally mounted trip lever actuated by said denominational members, and pins on the'transfer lever connecting said trip levers and said transfer levers whereby the swinging movement of the transfer levers is controlled as the drivers move the transfer levers longitudinallyi 5. In a computing mechanism, a series oi denominational members, a plurality of. trip levers, a locatorfor each, trip lever, a pm rality of drivers normally pressingagajnst said trip levers, a-pin nit Qf transfer levers, and means for conveying motion from said trip levels to said transfer levers whereby the tranfer levers are swun to one side when. said trip levers have een tripped.

6, In a computing mechanism, a series of denominational members,a transfer lever eachuof said denominational members except the-lowest, means for causing a swinging action of said, transfer levers, a

driver ion-eichjofsaid ltransferlevers for bodilymoving the same during their swinging movement, eachof saidsdrivers being formed with a pair of spaced slots,,a stationary .pinextending through each of said slots for .causingsaid drivers to move longitudina'lly, res lient means for; vmoving said drivers iii one; direction, and resetting mech anism for moving the drivers in the opposite direction 5i 7. In a computing'mechanism, .a series of denominational members, a transfer lever for each ofsaid denominational members except the lowest, a driver: for each of saidltransfer' levers ,for. o perating thesame, each" of said ily-3 5 being formed with a pairv of; guids lo'ts a .i;1d a laterally extending hook memberfstationary means extending through eachfof said slots torguiding said drivers in thein' lm'oveme'nts, means for forcing;:$; -id drivers in one direction, and reciprocating meansengaging hook members for movin'g thefldrivers in the opposite direction.

1211M mp ing; ch ,v a. er of 'dmornirrationalmembers, a transfer lever vmechanism 'for moving the drivers in the E opposite direction,

9, In acomputingmechanism, aseries of idenominational members, a transfer lever for each of said denominational members eX- geept. the ll owest, a ..pivotally mounted trip @lever for each .of the transfer. levers for gswingingthe transfer levers, each of said tripievers being formed with an aperture mer. for Each of said transfer levers, means pivotinto a slot, a reciprocating driver allyconneoting one end oi the transfer levers to one end of-the respective drivers, a proj ection extending from-each of said transfer leversfitting in theapertures of the respective trip levers. but o filling said apertures ioo tion extendingfrofil the/transfer levers ac'ting in said slot for causing the 'tripfle'vers.

to swing the transfer levers,'and-"'resetting means for resetting the drivers, trip levers and transfer leversfi" '1 10. In a computing mechanism, a series of denominational member's, a transfer -lever for "each of' sa id denominational members except the lowest," is pivotally' mounted trip lever for'each of said transfer levers, each of said trip levers "being formed 3- with a plurality' of notches 'bii. one side, ati'ip'lever locatoradaptedtofpioject into'bne of said notches, me'a'nsi i=" resi1iently" yieldingly holding the ,loc tor eng'iigement withone I of said movement of the tIIPlGVBIS, .and means for moving said transfer leversfi 11. In" compiitiiig mechanism, of denominationalmembers, a trip ever for each of theideno-minatidrial 'members eiicept the highesfi forr ned with a' plurality "of adapted to moi pivotallyin either of'two cliches for "yieldingly resisting Z a series directions, a nearer-f rment of said t ri p levers "yieldiiigly"findfrsiliently engaging said trip levers in 's a'id notches for normally holdingl'thei levers iir'a ny of their "various positions, a'pivotally mounted-transfer lever foif'eacliofithetriplevers, and means con- 1 necting the transferlevjers with thetrip levers for..c ausing the transfer levers to be moved pivotally ln'the same direction and substantially at thesame time as the trip levers whereby the denominational members are operated in either direction.

12. In a computing mechanism, a series of denominational members, carrying mechanism therefor including drivers formed with a projectionfa resetting mechanism formed witlra reciprocating plate having a turned up shoulder designed to engage said projection for moving said drivers in one direction .for caus ng the resetting of said carrying mechanism, and means for auto-' the same in a predetermined position, means connected with the opposite end of the spring for causing the spring to continuously pull on said extension, and a guiding bar associated with said extension for guiding the same in its reciprocatory movement.

14 Ina computing mechanism, a. series of denominational members, carrying mechajnism for the denominational member's, re-

storing mechanism for restoring the denominational members, and resetting mechanism 1 for operating said'carryingmechanism for resetting the same after any operation thereof, said resetting mechanism comprising a reciprocating member provided with an extension, a rod'rigidly secured to. said extension, a post formed with an aperture for accommodating said rod-whereby the rodis guided in its reciprocat-ory movement,"and resilient means'co-nnected tosaid post and to said ci itension for normally holding the extension aiidparts connected therewith in inoperative'position. i 4 15.- In a' computing mechanism, a v series of denominational members formed with a 'pluralit-y't of projections Iand."a",'pivotally mounted comb structure arranged tolengage said'projections when moved inone direction, carrying mechanism ".and restoring mechanism "for the denominational members, said restoring niechanismincluding a cam connected to the shaft'of t-hejdei'iominational membersfsaid shaft carrying said comb shaped 'structure,a pivotally mounted arm, a train of gearing, a pivotally mounted rack engaging said train of gearing, and means connecting said rackand said arm whereby said rack is moved when said arm is shifted from one position to another.

16. In a computing mechanismiaseries of denominational members, a shaft for supporting the. same formed with a longitudinal groove and a plurality of substantially transverse grooves radiating from the longitudinal groove, a substantially combshaped structure pivotally arranged in said groove with the teeth thereof in the transverse grooves, a pin projecting'from each of the denominational members arranged in the path of movement of the teeth of said comb-shaped structure when the same is moved pivotally out of said transverse grooves, a pinion secured to said shaft, means for operating the sanie,and means for retarding the movement of the combshaped structure. 17. In a computing device, a series of de nominational members, a carrying mechanism therefor including trips operated by the denominational members, transfer levers, and means connecting the transfer levers and said trips for causing the trips to move each of said transfer levers in either of tvvo directions whereby the denominational members are caused to add and subtract at will, and aresetting member ar .ranged to operate the, transfer levers without disturbing the denominational members.

18. In a computing device, a series of denominational members, a pivotally mounted trip for each of saiddenominational anembers except the highest designed. to be swung in either oftWo directions by said denominational members, .a bodily .reciprocating transferl lever, pins, for .,connecting said transfer leveiyand said trip levers :whereby the transfei' le ver will be moved pivotally inthesame direction as the trip levers, said transfer, lever beingdesigned to engage said denominational members to cziuse the same to movein either ofgtwo, directions foradding and subtracting ati wilhan d meansfor' resetting sa1dfltransfer. ,lever and said. trip' =levers.

19. In a compu inghdevice, aseries of denon'iina'tional members, a, plurality of trips, a plurality of transfer levers adapted to be swung in either o-f ,t,wof directions from a neutral position a ,d riverfor each of said? transfer levers, resetting anechanism for re-' setting all ofisaid drivers and transferale.

.vers',.an'd ,,.lockin g ,.',.le r for each transfer lever formed ,{with'ja rm-shaped openingi for locking ,t e sier. Qlevers insaid neutral position gaai"iai;ivers have been ,reset.

Q flem mputleeidsw Memes ofldgcurved sidesadap'ted to engage the respeci the pins on said transfer levers for collecting and locking the transfer levers in a neutral position.

21. In a computing device, a series of denominational members, a plurality of trips, a plurality of transfer levers actuated by said trips, :1 driver for each of said transfer levers, resetting mechanism for resetting said drivers, trips and transfer levers, restoring mechanism for restoring said denominational members, means operated by said restoring mechanism for causing said trips to be held against movement whereby the denominational members associated therewith will be locked against movement beyond a certain extent when the same are restored, and a pivotally mounted member actuated .by said transfer resetting mechanism for locking the denominational memher not locked by said trips.

22. In a computing device, a series of denominational members, carrying mechanism therefor, restoring mechanismfor said deotally mounted tripsformed with a substantially U-shaped slotin one end, a transfer'lever for each of said trips, a driver for each of said transfer levers, a pin extending from each of said drivers into said substantially U-shaped slot, said pin acting against one wall of said slot for moving pivotally said trips when said driver is being forced forward and acting on the opposite wall for bringing said trips back to their original position when said driver is moved rearwardly,

.means for resetting said driver, and means for restoring said denominational members.

24. In a computing device, a series of denominational wheels, each of said wheels having an enlarged tooth, a pivotally mounted trip lever for each of said denominational wheels, a transfer lever designed to be moved ,p ivotally by said triplevers, said trip leyers normally projecting into the path of movement of said enlarged teeth whereby upon each rotation of any of the denomina tional wheels the trip lever associated therewith'will be operated for swinging the trans fer lever on its pivotal support, and a driver normally acting on each of said transfer levers for moving the same forwardly after the same have been moved pivotally by the trip levers, whereby the complete rotation of any of the denominational wheels except the highest will cause one of the trip levers and one of the transfer lovers to actuate the next higher denominational wheel.

25. In a computing device, a series of denominational wheels, each of said denominational wheels being formed with a stop, a shaft for supporting said denominational wheels, said shaft being formed with a groove having radiating notches, a combshaped structure arranged in said groove with the teeth of the comb normally in said notches, means for rotating said shaft, means for raising the teeth of said comb at the beginning of the rotation of said shaft whereby the teeth of said comb will engage projections on said denominational wheels and move the denominational wheels until the enlargements arranged thereon are all in line,,carrying mechanism, and a resetting member arranged to reset the carrying mechanism without disturbing the denominational wheels.

26. In a computing mechanism, a series of said shaft being formed with, a recess,,a C01- lectingeomb formed ,withabodjqand a pluralityof teeth arranged in 'said recess, means for rotating said shaft for, resetting said-denominationalwheels, and a friction member connected, with the body of said 'comb for rockiiigthe same, whereby the teeth thereof will be caused to engage the projections from said denominational wheels as the shaft supporting ,the denominational Wheels is rotated,,yvhereby.the numerals on said'denonnnational Wheels will be brought into line and consequently restored. i 4 I 2"('. In a computing mechanism,'a series of denominational, members, carrying; mecha nism therefor, resetting mechanism for said carrying mechanism, a a stop, rigidly secured to each of said denominational members, and a shaft looselyi,projectin' '.-,through sa id lr nominational a members, for rot'at'ably suppe i gaih Sa d shaft be n e n' with a notch, means for rotating said shaft when it is desired to restoresaid denomina': tionaL' members, a comb-like structure. ar-

.ra nge d.' .inf 's'aid notch formed with a ,body andwith te'eth projecting therefrom, a frictionidisk, said friction disk being'forme'd with a pairi of notches, a spring-pressed pawl normally engaging one of said notches adapted to press against the peripheryof Said friction disk when rotated, said friction disk being formed with an operating notch and said comb-like structure being formed with a projection fitting into said operating notch whereby when said shaft is rotated, the rotation .of said friction disk will be delayed until said rojection can move pivotally from one si e of the notch to the other and thus rock the teeth on said comb-like structure so as to bring the same into the path of movement of the projection extending from the denominational members and thus collect said projections and restore the denominational members.

28. In a computing mechanism, a series of denominational wheels formed with lugs thereon, carrying mechanism for said denominational wheels, resetting mechanism for said carrying mechanism, a. shaft loosely engaging said denominational wheels for supporting the same, said shaft being formed with a notch, means including a train of gearing for rotating said shaft nine-tenths of a revolution in one direction and then nine-tenths of a revolution in an opposite direction, a comb-like structure formed with teeth, said comb-like structure being arranged in the notch of said shaft, and means for actuating said comb-like structure so as to cause the teeth thereof to move out of said shaft during the rotation thereof to engage the lugs on said denominational wheels for restoring the denominational wheels asfthe comb-like structure and the shaft rotate and for movingtheteeth of said comb-like structure into said notch upon a reverse movementflof saidshaft.

.29. Ina-computing mechanism, a series of denominationallwheels; earryin mechanism therefor,-resetting mechanisinf or resetting said carryingmechanism, and means for re? storing said denominational wheels, said means comprising a pivotally mounted handlepag segmental rack, means fo'r connecting said handle and said rack solas to allow said handle a a f partial "independent movement for resettingsaid carrying mechanism and vthen .a simultaneous movement with the rack whereby the carrying mecha: nism will be reset.andthejdeno ninational wheels will be restored, '7 a' train "of, gearing set in motion '.by said rack, a gear ,whelr o: tated byj fsaidltrainiof gearing,'fa shaft rigidly, connected with'Qsaid gear wheel, and means actuated by said. shaft engaging said denominational 'wheels restoring ithe same when the shaft isrOtatedinone direction. i

"series of a0.;,,Ia acorn utin mechanism,

denominationa mem ers formed with sto s thereon; carrying mechanism 'for saidj'f enominationalmembers, resetting mechanism for said carrying mechanism, and restoring means operable independent of said carry-j ing mechanism" and said resetting mechanism, said restoring means including}; pivotally mounted handle, a rotating shaft, means'for connecting said handle and said shaft whereby when said handle is ,moved pivotally said handle will be rotated,' and a pivotally mounted comb set in motionby said shaft when rotated'in one direction adapted to engage said stops for collecting and restoring said denominational members. 7 31. In a computing device, a series of denominational wheels, each of said denominational wheels being formed with an enlargement thereon, carrying mechanism for said denominational wheels, said carrying mechanism includin a pivotally mounted trip actuated by said enlargement, a transfer lever for engaging the next higher denominational wheel, and rotating the same a predetermined distance, a driver for moving said lever forwardly, means extending from said transfer lever into engagement with said trip whereby said trip will move said transfer lever pivotally substantially simultaneously with its forward movement whereby the transfer lever is brought into engagement with the denominational wheels and moved for rotating the denominational wheels, means for resetting said carrying mechanism, and means operable independent of the resetting means for restoring said denominational wheels.

' Q32IIii1a computing machine, a series of ine'nibersfsa id trip levers being operated by said denominational members, a member connected with each of'said transfer levers an dgen'gaging 'said tripdevers for moving tlfejft'r'ansfer lei'ersf pivot-ally as the trip leversare moved byf sai'd" denominational members; and means"'act-ing on said drivers for moving the drivers" and the transfer 1e sim'ultaneoii'slywith thegswinging of the arious levers by the trip levers.

i ,"flra mputing mechanism, a series of denominational members, a transfer ,lever for of said fdenominational members e; the highest, a trip lever for each of sa transfer levers a'ctnated by'one of the denominationalmembers of a lower order 9 reus n F -9 9? to mow? one of "oi'nin ational members of a higher "in extendin from said trip lever rfl r i1 to said transfer lever or swinging the transfer, lever, and a s pring'pressed driver released" by said trip lever simultaneously with the swinging of said transfer lever, whereb said transfer lever is adapted to engage-3 ddenomina'tional members and arquis sna s predetermined distance;

' 34. In a computing mechanism, a series of denominational members, pivotally mounted trip levers operated by said denominational members,' eacli of said trip'levers having a slotlthereinya spring pressed driver for each of said trip' levers, a transfer lever pivotally mounted on each of said drivers, a pin carried byea'eh ofsaid transfer levers extending into the slots in said trip levers, whereby whenever said trip levers are tripped said transfe'r'levers will be swung to one side,

, directions, als pring and means carried by each of said trip levers for releasing said drivers simultaneously with the swingin of said transfer levers.

In a computing mechanism, aseries of denominational wheels adapted to'rotate in either direction, a" carrying mechanism therefor including a 'pivotally mounted trip adapted to be tripped in either "of two resseddriv enfa pivotally mounted, tr'ans er leverarraiiged bn said driver, means for loosely eonnecting said transfer lever and sai'dt'rip,"ivhiby when said trip is swungto eithei side of the neutral position said transfer lever willbe' swung to the same side of saiaineutmlptst;

" tion, whereby said'denominat-iofi'al members will be rotated according tonthe direction" swinging of saidtr'ansfer levrfor adding oifsubtraeting, and ii 'ea'ns operated by' said trip lever for releasmg'sa d dr ver Sln'lllltEF neously with theswingin g of said transfer lever, whereby said transferleverifs inoved forwardly and swung pivotallyt one'side substantially simultaneously. 1" i i 1 30. In a'computingime'chanism,"a series of denominational members, a pivotally mounted 'trip adaptedto be operated by'said'denominational members, salid pivotally mount-- ed trip having'a pluralityof notehesenfone edge, a spring pressed loeater formed a projection fitting into one of said notches for holding sa id tri'p' lever many ain s re spective positions, and for resiliently resist ing movement therefrom, a springpres'sed driver, a 'pivotally mounted transfer lever mounted on said driveradapt'ed to be moved bodily toward said denominational members by said driver, means" extendingffrom said transfer levers into engagement'with saidpivotally mounted trip lever, whereby said transfer levers are moved pivotally, substantially simultaneously with the tripping of said trip levers, and means operated by said trip levers for releasing said driver. In testimon whereof I have signed my name to this specification in the presence of two subscribin witnesses.

JESSE V. SOUDER. Vitnesses I i A. L. Kircnix, PHILIP D. ROLLHAUS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

' Washington, D. C." 

